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The McDonnell & Miller model 159S, with MPN 178802, serves as a combination float-operated low water cut-off and pump controller for steam boilers. It functions effectively in any steam capacity while offering high-pressure capabilities.
This unit operates under a maximum pressure of one hundred fifty psi and includes a tapped one-inch FIP connection for easy installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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